Rivet remover for chains



March 9, 1954 G. C. NOACK 2,671,310

RIVET REMOVER FOR CHAINS Filed Oct. 16, 1951 INVENTOR Patented Mar. 9,1954 UNITED STATES PATENT OFFICE RIVET REMOVER FOR CHAINS Gust C. Noack,Valley City, N. Dak.

Application October 16, 1951, Serial No. 251,530

1 Claim. 1

The present invention relates to a rivet remover for chains and itconsists in the combinations, constructions and arrangements of partsherein described and claimed.

Generally there is provided a rivet remover having a body through whichslidably extends a bolt which is threadably engaged at its inner endwith a block likewise slidably engaged with the body. A pair of jaws ishinged one at either side of the body and is provided at its inner endwith bifurcated portions which together form an opening for thereception therethrough of a pin removably mounted in the free end of thebolt. The bolt is provided at its other end with a head transverselyapertured for an elongated handle and a compression spring surrounds thebolt between the head and the body to normally force the jaws together,the latter being interconnected with the block by means of links. Afixed handle is attached to one of the jaws, and may be utilized withthe slidable handle to move the jaws apart against the action of theaforesaid spring. The device is such that it may be utilized to quicklyand easily remove rivets particularly from bicycle chains and the likeand possesses many novel features which will be brought out in theannexed specification.

It is accordingly an object of the invention to provide a novel rivetremover.

Another object of the invention is to provide a device of the characterset forth which is simple in construction, inexpensive to manufactureand yet efiective and efiicient in use.

A further object of the invention is to provide, in a device of thecharacter set forth, a novel removably mounted pin forming a part of theinvention.

A further object of the invention is the provision of a pair of novelcollecting handles forming a part of the invention.

Other and further objects of the invention will become apparent from areading of the following specification taken in conjunction with thedrawing, in which:

Figure 1 is a side elevational view of an embodiment of the inventionshowing the same in closed condition,

Figure 2 is a view similar to Figure 1 but showing the same in openedcondition,

Figure 3 is a plan view of Figure l, and

Figure 4 is an enlarged vertical sectional view, partly in elevation andpartly fragmentary and illustrating certain details of construction.

Referring more particularly to the drawing, there is shown therein apair of body plates each generally indicated at I!) and which plates 10are in parallel spaced relation to each other and each consists of abight portion H and a pair of parallel legs I2. Adjacent each end oftheir bight portions II the plates [0 are interconnected by rivets l3and, revolubly mounted upon each of the rivets l3 and lying between theplates Ill in each case is an outer jaw l4 and an inner jaw 15. I

A transversely extending bridge member IS interconnects, as by weldingthe central portions of the outer edges of the plates I0 and hasslidably extending therethrough a bolt I! which is provided at its outerend with a head [8 transversely apertured, as indicated at [9, for theslidable reception therethrough of an elongated handle 20 which isprovided with enlarged outer ends 21 to prevent the removal of suchhandle from the head l8.

The inner end of the bolt H is threadably engaged, as indicated at 22,with a block 23 and extends entirely therethrough.

The block 23 is slidably mounted between the legs l2 which form a guidetherefor and a rivet 25 extends transversely through the block 23adjacent each outer end thereof.

The jaws M and 15 are provided with inwardly directed bifurcated ends 26and each has extending transversely therethrough adjacent such innerends a rivet 21. Interconnecting the outer ends of each of the rivets 25with each of the outer ends of the rivets 21 are links 28. A fixedhandle 29 is attached to the jaw l5 and extends in a, directiongenerally parallel to the handle 20 when the device is in its closedposition, as indicated in Figure 1.

A pin 30 is provided with an exteriorly threaded reduced portion 3!which is threadably engaged in an interiorly threaded centrally disposedrecess 32 formed in the inner end of the bolt I7 and a compressionspring 33 surrounds the bolt I1 and bears against the bridge [6 at oneof its ends and against the head I 8 at its other end.

In operation, it will be apparent that when it is desired to remove arivet from the device or devices which the rivet may be engaged with, itis only necessary to move the jaws I l and I5 apart by grasping thehandles 29 and 20 and moving the same toward each other as shown inFigure 2 whereupon the bifurcated ends of the jaws may be engaged withthe device in which the rivet to be removed is mounted and allowed tocome together by means of the action of the spring 33 which, since iturges the bolt ll outwardly will likewise exert a pulling force upon theblock 23 and,

through the links 28 will cause the inward movement of the jaws l4 andI5 toward each other. When this has been accomplished, it is onlynecessary to manipulate the handle 20 to screw the bolt IT and hence theremovable pin 30 against the rivet and to thereby force the rivet fromengagement with the material in which it may be mounted. When the pin 36may become worn or injured, it may be readily replaced by utilizingflattenediportions 34 which are'formed on diametrically'opposed sidesthereof to provide gripping surfaces for a wrench, pliers or the likeafter which the pin may be replaced with a new one.

While but one form of the inventionhas been shown and described herein,it will be readily apparent to those skilled in the art that'many minormodifications may be made without departing from the spirit of theinvention or the scope of the appended claim.

What is claimed is:

. -A rivet remover for roller typeichains-comprisingia pair of'U-shapedplates, each having two leg portionsand a bight portion,-apairofjaws each-pivotally connected adj acent one of the ends ofthe-bight portions of saidplates, said;-jaws be'-' ing pivotable betweenthe plates and extending beyond the ends of :said leg portions to-gripthe chain links, a substantially rectangular block slidable between andin parallel relation to the leg portions of said plates, said blockhaving one dimension substantially-equal to-the distancebetween-theparallel leg portions and slidably :engaging :theinner edges r-thereofand theother dimension of said block being substantially equal to thedistance between the outer side faces of said plates, a bridge of sheetmaterial centrally interconnecting the bight portions of said plates, abolt slidable through said bridge and threadably extending through saidblock, links interconnecting the side portions of said block and thefree end portions of said jaws and slidable over the outer side faces ofthe leg portions of said plates," said links having ip'ivotalconnections at each end thereof with said'blockand said jaws, a head atthe outer end of said bolt, 2. compression spring surrounding said boltand bearing against said head and said bridge, a handle slidably andlaterally extending through said head, a handle aflix'ed to andextending from one of said jaws, and a pin fixed to the free end of saidbolt.

GUST C. NOACK.

References Citedrin. the .file of this patent UNITED 'STATES PATENTSNumber Name Date 471,084; Hopkin "Mar. 15, 1892 1,435,397 Hunt Nov. 14,1922 "FOREIGN PATENTS Number *Country Date 171,020 "Great' Britain Nov.10, 1921 "171,041 Great Britain Nov. 10, '1921 370,794 Great BritainApr. 14, 1932

